We encourage you to use MathType. MathType is the recommended method for creating equations. You may also use Microsoft Equation Editor present in Office XP/2003 editions.

If you use Word 2007/2010 do not use the embedded equation editors as when you will save the document in .doc format all equations will be converted to images. You can ensure that the equations in your .docx file remain editable in .doc by enabling "Compatibility Mode" before you begin. To do this, open a new document and save as Word 97-2003 (*.doc). Several features of Word 2007/2010 will now be inactive, including the built-in equation editing tool. You can insert equations by going to Insert > Object > Microsoft Equation 3.0.